One of the critical factors in filter coffee brewing is the flow of water through the coffee grounds. This process is governed by a combination of gravity, pressure, and viscosity. As the hot water is poured over the grounds, it begins to flow downward through the filter due to gravity. The rate of flow is influenced by the pressure difference between the top and bottom of the filter, as well as the viscosity of the water.

For coffee enthusiasts, there's nothing quite like the rich aroma and flavor of a perfectly brewed cup of filter coffee. But have you ever stopped to think about the physics behind this beloved beverage? In fact, the process of brewing filter coffee is a complex interplay of physical principles, from fluid dynamics to thermodynamics.

Elena continued to experiment with different brewing methods and variables, always striving to create the perfect cup of coffee. She even started her own blog, sharing her findings and insights with other coffee lovers.

[ \textExtraction Yield (%) = \frac\textBrewed coffee solids (g)\textDry coffee grounds (g) \times 100 ]